Finding the Fourth Proportional to 86,707.44, 129,925.08 and 51,627.96
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Solution
The fourth proportional to 86,707.44, 129,925.08 and 51,627.96 is: 77,360.91
Step by Step Solution
- Step 1: Write the proportion equation
86,707.44 : 129,925.08 = 51,627.96 : x - Step 2: Convert to fraction form
86,707.44/129,925.08 = 51,627.96/x - Step 3: Cross multiply
86,707.44x = 129,925.08 × 51,627.96 - Step 4: Simplify right side
86,707.44x = 6,707,766,833.24 - Step 5: Solve for x
x = 6,707,766,833.24/86,707.44 - Step 6: Final answer
x = 77,360.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.